TMZ.com

Jason Derulo's ex Jena Frumes brought the heat to South Beach this weekend ... flaunting her beach body in a hot red bikini while hanging with her baby daddy and their son.

The fam was photographed at the W South Beach -- a five-star hotel in Miami Beach this weekend ... heading out to the sand where they had their own VIP cabana and sunbeds.

Check out the pics ... Jena stripped off her cover-up dress shortly after arriving at the beach -- revealing her steamy swimwear underneath.

Jennifer Lopez is enjoying a snowy Christmas this year ... bundling up while hanging around Aspen, Colorado with one of her kids and the rest of her family.

The singer-songwriter walked through Aspen with her fam Tuesday ... throwing on a warm-looking brown coat with ripped jeans and a pair of brown flats.

She walked alongside Emme, her 16-year-old, who she shares with ex-husband Marc Anthony -- throwing an arm around Emme's shoulders and chatting a they made their way down the street.

Richard Perry -- a music producer who collaborated with some of the biggest stars of the 1970s and '80s -- has passed away ... TMZ has confirmed.

Ben McCarthy -- Perry's personal assistant of nearly three decades -- tells TMZ ... Richard passed away at around 1:30 AM this morning.

We're told Richard fought Parkison's disease ... with Ben saying he saw him for a few hours about a month ago -- and, Richard wasn't able to verbally communicate. That said, Richard was in good spirits during their visit, Ben adds.

Not that Mariah Carey needs anymore 'Queen of Christmas' cred, but Billboard is giving it to her anyway -- her mega holiday hit just shattered another record!

"All I Want for Christmas Is You" has been sitting atop the Hot 100 chart for 3 consecutive weeks now, which gives it 17 total weeks at number one since its release in 1994 -- and it now reigns as Mariah's longest-running chart-topper.

On Monday, MC celebrated the achievement by reposting Billboard's Instagram photo featuring the news.

Halle Bailey and her ex, DDG, got together to celebrate their son Halo's first trip around the sun ... and the celeb parents went all out for his birthday bash.

The "Little Mermaid" singer shared photos and videos from Sunday's birthday party on her social media ... smiling and holding Halo.

The party had a "Cocomelon" theme ... there was a ball pit, a couple slides, and a ton of balloons ... plus a cool Cocomelon cake for Halo.

Mariah Carey is sparking romance rumors with Anderson .Paak ... because they went out to dinner together in Aspen, and they were holding hands!!!

The "All I Want For Christmas" singer hit up Catch Steak in the popular celeb vacation destination Sunday night with Anderson ... and there were signs of a potential new couple.

Mariah and the Silk Sonic scribe were holding hands as they headed into the fancy steakhouse ... and they both appeared super happy, just look at the grins and smiles here.

Kim Kardashian made a surprise comeback over the weekend after a 13-year hiatus from the music scene ... dropping a cover of a holiday classic with the help of her brother-in-law.

On Sunday night, surprised fans by dropping a cover of the 1953 Eartha Kitt holiday classic "Santa Baby" which was produced and released by none other than Kourtney's hubby, Travis Barker and DTA Records and Columbia Records.

Kim also dropped a somewhat bizarre yet stylish music video accompanying the song which was directed by Nadia Lee Cohen and Charlie Denis by DMB Represents. In the video Kim is seen wearing a blonde wig and crawling through a disheveled house on all fours.

Justin Timberlake's saying bye, bye, bye to fans eyeing his bulge ... covering up with a longer t-shirt onstage after his unfortunate wardobe malfunction.

The singer-songwriter took the stage in Kansas City Friday night at the T-Mobile Center as part of the "Forget Tomorrow" world tour ... belting out "Mirrors" in the same harness he wore in Nashville -- with one huge difference.

This time, Timberlake put on a much longer top -- hiding his crotch from view ... so, nobody in K.C. caught a glimpse of Lil Justin.

Alfa Anderson -- a major part of the disco band Chic -- has passed away ... this according to one of her former bandmates.

The disco legend passed away earlier this week, according to founder of Chic Nile Rodgers ... who shared several throwback pics of the group together with "RIP Alfa Anderson. CHIC Organization" written on it.

He adds she is "forever loved" ... and did not include a cause of death in his post.

Taylor Swift is feeling the holiday spirit ... dressing up in a bright red furry coat while arriving at Arrowhead Stadium in Kansas City to support her man.

The singer-songwriter pulled up to the Chiefs game against the Houston Texans just a little while ago ... stepping out of the customary golf cart looking like Mrs. Claus in the coat and black bucket hat.

She looks real warm in her ensemble ... good news since it's currently just 33 degrees in Kansas City -- and expected to get even chillier as the day goes on.

Songbird Christina Aguilera showed up to rock out and support fellow singer Billie Eilish for night 4 of her sold-out homecoming shows at The Forum in Los Angeles Friday evening.

Xtina was spotted making her exit through the crowd of attendees, showing off her slimmed-down figure in a graphic tee, skinny jeans and chunky boots, topped off with a leather jacket.

The "Lady Marmalade" singer attended the show with her 10-year-old daughter Summer Rain.

Kenny G knows his favorite holiday song inside and out ... he was the one who recorded it, after all.

We caught up with the famed saxophone player at LAX earlier this week ... and, since it's the time of year when holiday songs dominate the radio, we had to know what the prolific musician thinks is the best song of the season.

Kenny says he's not trying to blow his own sax here ... but, he says if people need some easy listening while sitting around a crackling fire this Christmas season, then look no further than the song, "Have Yourself A Merry Little Christmas" -- the one he recorded back in 1994.

Britney Spears says she scrubbed a video of herself dancing from her social media page after getting a ton of negative responses.

The singer just explained her reasoning for taking down the video of her having a solo dance party in her hotel room in Los Cabos, Mexico ... Britney says she made the change "because so many people said so many mean things."

Britney keeps the replies off on her IG, which is where the video in question was originally posted, but it sounds like she still pays attention to what folks say about her elsewhere on the internet.

Nick Cannon was in the house to see his ex-wife Mariah Carey leave her mark on Rihanna's breast ... and he says more women should follow their lead.

We got Nick heading in to do some charity work Friday at the Los Angeles Mission and our photog asked him about the viral video from Mariah's recent concert.

Nick says watching Mariah autograph RiRi's boob was "hot" ... and he hopes it becomes a trend.

Britney Spears has a new bed companion ... no, not a model with rock-hard abs -- it's actually a stuffed rabbit she brought back from Mexico.

The singer-songwriter left Cabo, Mexico to get back to Los Angeles Thursday -- bringing her new furry friend back from south of the border.

She's holding her new pal tight in Mexico -- covering up most of her face with it while adding a black hat and dark sunglasses to her look.

Rihanna’s dropping a holiday snack hack for all the soccer moms -- a snack that's both bougie and budget-friendly... depending on who’s paying!

The Fenty Beauty entrepreneur dropped a hilarious IG video Thursday ... where she flexed with her caviar while her friend brought a plate of chicken nuggets to the table, creating the ultimate "chicken nugget caviar" combo.

The video is pure gold -- just two pals having a blast, with RiRi spreading her luxurious caviar on her friend's budget-friendly chicken nuggets like it’s no big deal.